Home / 13,920,747.16-19,212,941.51-8,119,528.90

Finding the Fourth Proportional to 13,920,747.16, 19,212,941.51 and 8,119,528.90

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Solution

The fourth proportional to 13,920,747.16, 19,212,941.51 and 8,119,528.90 is: 11,206,297.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920,747.16 : 19,212,941.51 = 8,119,528.90 : x
  2. Step 2: Convert to fraction form
    13,920,747.16/19,212,941.51 = 8,119,528.90/x
  3. Step 3: Cross multiply
    13,920,747.16x = 19,212,941.51 × 8,119,528.90
  4. Step 4: Simplify right side
    13,920,747.16x = 156,000,033,872,751.31
  5. Step 5: Solve for x
    x = 156,000,033,872,751.31/13,920,747.16
  6. Step 6: Final answer
    x = 11,206,297.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.